L'Art Français, Paris, February 14, 1888, illustrated; Léon Maillard, Auguste Rodin, statuaire: Études sur quelques artistes originaux, Paris, 1899, p. 146; Camille Mauclair, Auguste Rodin: The Man - His Ideas - His Works, London, 1905, p. 31; Frederick Lawton, The Life and Work of Auguste Rodin, London, 1906, p. 229; Eric Robert Dalrymple Maclagan, Catalogue of Sculpture by Auguste Rodin, London, 1914, no. XVII, p. 20 & 21; Fridolyn G. Watkins, Rodin Museum of Philadelphia, Philadelphia, 1929, no. 102, illustration of another cast p. 23; Georges Grappe, Catalogue du Musée Rodin. I-Hôtel Biron, 1938, no. 116; Georges Grappe, Catalogue du Musée Rodin. I-Hôtel Biron, 1944, no. 132; Robert Descharnes &Jean-François Chabrun, Auguste Rodin, Lausanne, 1967, illustration of the plaster version p. 125; John L. Tancock, Rodin Museum Handbook, Philadelphia, 1969, no. 17; John L. Tancock, The Sculpture of Auguste Rodin, Philadelphia, 1976, illustration of the plaster version p. 183, illustration of the marble version p. 184; Antoinette Le Normand-Romain, The Bronzes of Rodin, vol. II, Paris, 2007, plaster cast no. S.1196, illustration of another cast p. 470, illustration of the marble and plaster versions p. 471